code: def test_zero_height_skipped(self):
      p = Plot(["a", "b", "c"], [1, 0, 2]).add(Bar()).plot()
      ax = p._figure.axes[0]
      assert len(ax.patches) == 2
  
imports: import numpy
  import pandas
  from matplotlib.colors import to_rgba, to_rgba_array
  import pytest
  from numpy.testing import assert_array_equal
  from seaborn._core.plot import Plot
  from seaborn._marks.bar import Bar, Bars
label_desc: Use image node_id 9 for calling the TestBar obj's underlying member method code with example usage: obj.test_zero_height_skipped() without return types